AnswersCR CCSS Math 2 S2 M2960OXSolving for Side Lengths of Right Triangles

Solving for Angle Measures of Right Triangles Answers

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1
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What is the measure of ∠R in △PQR? Round to the nearest degree.

A
26°
B
42°
C
45°
D
64°
2
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m∠D = [___]°

A
36
B
44
C
46
D
54
3

In which triangle is the measure of the unknown angle, x, equal to the value of sin–1 (StartFraction 5 Over 8.3 EndFraction) ?

A
[Image: A right triangle is shown. The length of the hypot...]
B
[Image: A right triangle is shown. The length of the hypot...]
C
[Image: A right triangle is shown. The length of the hypot...]
D
[Image: A right triangle is shown. The length of 2 sides a...]
4

Which equations for the measures of the unknown angles x and y are correct? Check all that apply.

A
x = cos–1
B
x = sin–1
C
x = tan–1
D
y = sin–1
E
y = cos–1
5

Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round to the nearest degree.

A
18° and 39°
B
23° and 67°
C
43° and 47°
D
65° and 25°
6

What is the measure of the angle that the slide makes with the ground, x, to the nearest degree?

A
28°
B
36°
C
54°
D
62°
7

[___]°

Answer:

16

8

A helicopter flies 665 feet above ground. What is the measure of the angle of depression from the helicopter to the girl’s line of sight? Round to the nearest degree.

A
23°
B
25°
C
65°
D
67°
9

Compare the measures of the different angles of elevation and depression that are labeled in the diagram. Which statements are true? Check all that apply.

A
x > y
B
v > x
C
w = y
D
y < v
E
v = w
F
x < w

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